I have a nice set of 1.72 Ford Motorsport roller rockers for small block Ford. These are the blue race rockers, not the cobra's. $150 for the set. Call if interested. 313-632-9100, thanks for looking.
No, the E-7's use bolt down rockers. These are stud mount. If you are not using a lot of valve spring pressure I also have a conversion kit from Crane that will allow you to use these as a bolt on, no work required. I could throw that in for another $25. This would then be a direct bolt on. If you have any questions give me a call. Thanks.